210012020 has 48 divisors (see below), whose sum is σ = 454137600. Its totient is φ = 81544320.

The previous prime is 210012013. The next prime is 210012029. The reversal of 210012020 is 20210012.

It is a junction number, because it is equal to n+sod(n) for n = 210011989 and 210012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95291 + ... + 97469.

It is an arithmetic number, because the mean of its divisors is an integer number (9461200).

Almost surely, 2^210012020 is an apocalyptic number.

210012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210012020 is an abundant number, since it is smaller than the sum of its proper divisors (244125580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210012020 is a wasteful number, since it uses less digits than its factorization.

210012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 210012020 is about 14491.7914696562. The cubic root of 210012020 is about 594.4035356856.

Adding to 210012020 its reverse (20210012), we get a palindrome (230222032).

The spelling of 210012020 in words is "two hundred ten million, twelve thousand, twenty".